opentelemetry-instrumentation: teach opentelemetry-instrument about gevent #3699
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...telemetry-instrumentation/src/opentelemetry/instrumentation/auto_instrumentation/__init__.py
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DylanRussell
approved these changes
Aug 29, 2025
tammy-baylis-swi
approved these changes
Aug 29, 2025
…event Introduce OTEL_PYTHON_AUTO_INSTRUMENTATION_EXPERIMENTAL_GEVENT_PATCH=patch_all environment variable that calls gevent monkey module patch_all method before starting up the distro and sdk. The environment variable should useful also for apps instrumented via the opentelemetry-operator. The flag removes the following warning (and hang) when running locust: $ opentelemetry-instrument locust /lib/python3.10/site-packages/locust/__init__.py:16: MonkeyPatchWarning: Monkey-patching ssl after ssl has already been imported may lead to errors, including RecursionError on Python 3.6. It may also silently lead to incorrect behaviour on Python 3.7. Please monkey-patch earlier. See gevent/gevent#1016. Modules that had direct imports (NOT patched): ['urllib3.util (/lib/python3.10/site-packages/urllib3/util/__init__.py)', 'urllib3.util.ssl_ (/lib/python3.10/site-packages/urllib3/util/ssl_.py)']. monkey.patch_all()
Co-authored-by: Tammy Baylis <96076570+tammy-baylis-swi@users.noreply.github.com>
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Description
Introduce
OTEL_PYTHON_AUTO_INSTRUMENTATION_EXPERIMENTAL_GEVENT_PATCH=patch_allenvironment variable that calls gevent monkey modulepatch_allmethod before starting up the distro and sdk. The environment variable should useful also for apps instrumented via the opentelemetry-operator.The flag removes the following warning (and hang) when running locust:
With the change:
While we only support patch_all, it's trivial to add support for more gevent patch methods (https://www.gevent.org/api/gevent.monkey.html#use-as-a-module).
The name contains
EXPERIMENTALbecause this is also patching code used by our exporters and while it appears to work it's not something we should encourage.Fixes #3629
Type of change
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How Has This Been Tested?
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Does This PR Require a Core Repo Change?
Checklist:
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